NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, all time — NPA 540
METROPCS, INC. 163
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2025-03-20 540-957-8XXX 8000–8999Assigned METROPCS, INC. 5562 BUENAVISTA VA
2021-08-30 540-990-5XXX 5000–5999Assigned METROPCS, INC. 5562 DAHLGREN VA
2021-04-22 540-695-2XXX 2000–2999Assigned METROPCS, INC. 5562 FLOYD VA
2021-04-17 540-782-4XXX 4000–4999Assigned METROPCS, INC. 5562 STANLEY VA
2021-03-30 540-457-5XXX 5000–5999Assigned METROPCS, INC. 5562 STAUNTON VA
2021-01-25 540-500-4XXX 4000–4999Assigned METROPCS, INC. 5562 LOUISA VA
2021-01-25 540-620-4XXX 4000–4999Assigned METROPCS, INC. 5562 COVINGTON VA
2020-09-01 540-534-7XXX 7000–7999Assigned METROPCS, INC. 5562 HARRISONBG VA
2019-02-25 540-893-7XXX 7000–7999Assigned METROPCS, INC. 5562 LOUISA VA
2019-01-29 540-214-4XXX 4000–4999Assigned METROPCS, INC. 5562 HARRISONBG VA
2019-01-14 540-566-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROANOKE VA
2018-12-11 540-859-9XXX 9000–9999Assigned METROPCS, INC. 5562 GORDONSVL VA
2018-12-05 540-472-3XXX 3000–3999Assigned METROPCS, INC. 5562 BROKENBURG VA
2018-12-05 540-513-6XXX 6000–6999Assigned METROPCS, INC. 5562 ORANGE VA
2018-09-21 540-541-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROANOKE VA
2018-06-18 540-660-6XXX 6000–6999Assigned METROPCS, INC. 5562 FRONTROYAL VA
2018-03-29 540-217-1XXX 1000–1999Assigned METROPCS, INC. 5562 HARRISONBG VA
2018-03-29 540-665-7XXX 7000–7999Assigned METROPCS, INC. 5562 WINCHESTER VA
2017-11-24 540-370-3XXX 3000–3999Assigned METROPCS, INC. 5562 FREDECKSBG VA
2017-09-12 540-447-9XXX 9000–9999Assigned METROPCS, INC. 5562 WAYNESBORO VA
2017-09-07 540-795-0XXX 0000–0999Assigned METROPCS, INC. 5562 ROANOKE VA
2017-08-21 540-638-8XXX 8000–8999Assigned METROPCS, INC. 5562 HARRISONBG VA
2017-08-01 540-321-2XXX 2000–2999Assigned METROPCS, INC. 5562 CULPEPER VA
2017-07-13 540-970-4XXX 4000–4999Assigned METROPCS, INC. 5562 ROANOKE VA
2017-05-18 540-755-5XXX 5000–5999Assigned METROPCS, INC. 5562 CHANCELLOR VA
2017-03-21 540-609-3XXX 3000–3999Assigned METROPCS, INC. 5562 STAUNTON VA
2017-03-16 540-252-7XXX 7000–7999Assigned METROPCS, INC. 5562 FRONTROYAL VA
2017-03-16 540-551-6XXX 6000–6999Assigned METROPCS, INC. 5562 FRONTROYAL VA
2017-03-07 540-705-8XXX 8000–8999Assigned METROPCS, INC. 5562 HARRISONBG VA
2017-02-07 540-642-5XXX 5000–5999Assigned METROPCS, INC. 5562 FREDECKSBG VA
2016-12-28 540-607-2XXX 2000–2999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-11-09 540-607-9XXX 9000–9999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-11-09 540-749-9XXX 9000–9999Assigned METROPCS, INC. 5562 FRONTROYAL VA
2016-09-28 540-970-5XXX 5000–5999Assigned METROPCS, INC. 5562 ROANOKE VA
2016-09-28 540-970-6XXX 6000–6999Assigned METROPCS, INC. 5562 ROANOKE VA
2016-08-15 540-481-5XXX 5000–5999Assigned METROPCS, INC. 5562 EDINBURG VA
2016-07-20 540-607-4XXX 4000–4999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-07-06 540-595-8XXX 8000–8999Assigned METROPCS, INC. 5562 ROANOKE VA
2016-05-13 540-447-3XXX 3000–3999Assigned METROPCS, INC. 5562 WAYNESBORO VA
2016-05-10 540-607-5XXX 5000–5999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-05-10 540-607-8XXX 8000–8999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-05-09 540-385-2XXX 2000–2999Assigned METROPCS, INC. 5562 CHRISTISBG VA
2016-05-09 540-698-2XXX 2000–2999Assigned METROPCS, INC. 5562 SHAWSVILLE VA
2016-04-28 540-607-3XXX 3000–3999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-04-21 540-310-7XXX 7000–7999Assigned METROPCS, INC. 5562 FREDECKSBG VA
2016-04-11 540-214-1XXX 1000–1999Assigned METROPCS, INC. 5562 HARRISONBG VA
2016-04-07 540-595-1XXX 1000–1999Assigned METROPCS, INC. 5562 ROANOKE VA
2016-04-07 540-595-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROANOKE VA
2016-04-07 540-739-6XXX 6000–6999Assigned METROPCS, INC. 5562 BLACKSBURG VA
2016-01-15 540-679-3XXX 3000–3999Assigned METROPCS, INC. 5562 HOTSPRINGS VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.